Saturday, June 29, 2013

GEOMAGNETIC STORM IN PROGRESS & EARTH-DIRECTED CME

EARTH-DIRECTED CME: June 28th began with a double solar flare. Magnetic fields around sunspots AR1777 and AR1778 erupted in quick succession between 0130 UT and 0345 UT, producing two C-class (C4, C7) flares.

A CME emerging from the sprawling blast site appears to be heading for Earth, although not squarely. An analysis of this complicated event is still underway. It is possible that Earth's magnetic field will receive a glancing blow from the CME on or about June 30th. The impact could cause minor geomagnetic storms. Stay tuned for updates.

Photo: NASA File

GEOMAGNETIC STORM IN PROGRESS: A moderate (Kp=6) geomagnetic storm is in progress on June 28-29 as Earth passes through a region of south-pointing magnetism in the solar wind. High-latitude sky watchers should be alert for auroras. In the northern hemisphere, solstice twilight will sharply reduce visibility; southern hemisphere observers may have better luck.

GEOMAGNETIC STORM IN PROGRESS: A moderate (Kp=6) geomagnetic storm is in progress on June 28-29 as Earth passes through a region of south-pointing magnetism in the solar wind. High-latitude sky watchers should be alert for auroras.

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